Endless Energy recently installed our new HVAC system, and I couldn't be more impressed with the entire team. Garret, Gavin, Keith, and Rich handled the installation and did an exceptional job. They were professional, knowledgeable, and took the time to walk me through everything--from how the system works to setting up the thermostat and even how to replace the filter. Their workmanship and communication were top-notch. I also want to recognize Nick and the team working behind the scenes. Nick has helped us through our no-heat situation,put together our proposal quickly, and arranged a weekend installation to make sure we weren't left without heat. His coordination and responsiveness really stood out. Every part of this experience was handled with care and professionalism. I would recommend Endless Energy to anyone without hesitation. Todd R read more

Endless Energy installed a Fujitsu heat pump system in my home in October 2022 through the Mass Save program, and it has never worked properly since day one. From the start, the system constantly shut down and threw error codes. We were actually told by their team that shutting off power to our entire house for 30+ minutes to reset the system was an acceptable solution--something we had to do multiple times per week (and sometimes multiple times per day). That alone should have been a huge red flag. Winters were even worse. We haven't been able to use it at all during the coldest months and were told that just happens in New England winters. We've been forced to rely heavily on expensive oil heat while still paying for this system. They attempted a few fixes over the first couple years, including installing a surge protector, but nothing ever solved the issue. The system continued to fail repeatedly and has now been completely unusable since December 2025. We recently had an independent electrician evaluate it, working directly with Fujitsu, and the system now needs a new compressor and control board. Even more concerning, it appears likely that the root issue may stem from the original installation or wiring--something that was questionable from the start. The installers often seemed inexperienced and had to call others for guidance several times during the install. To make matters worse, Endless Energy now wants to charge us just to come out and diagnose a system they installed that has never worked correctly. They are apparently under new ownership with significant staff turnover, and at this point have been completely unwilling to take responsibility or meaningfully help resolve the situation. After 3+ years of issues, missed work for service calls, ongoing loan payments, and thousands spent on backup heating, I have zero confidence in their ability to fix this. I would strongly caution anyone considering using Endless Energy. read more

I've never left a negative review before, but I felt this needed to be shared. I had a brand-new LG mini split system installed in 2022. Within 8 months, it stopped working properly and was only blowing room-temperature air in both heat and AC. A technician came out, diagnosed it as low refrigerant, and repaired and recharged the system under warranty. Now, just a couple of years later, I'm experiencing the exact same issue again. After testing, they confirmed it's once again low on refrigerant--but this time I was quoted $2,500 for repairs because the 1-year labor warranty has expired. I declined the repair and was told a manager would follow up, but I never received a call. This appears to be an installation issue that was never fully resolved--just temporarily fixed with a recharge the first time. Unfortunately, I had referred Endless Energy to several others after the initial install. Based on this experience, I can no longer recommend them. I would suggest finding a company that stands behind their work and properly resolves issues the first time. read more

Eydin came to service our 10-year-old mini-split which would not heat or cool. Initially it appeared to have a leak but after several pressure tests, he could not locate one. The system held pressure so the problem did not appear to be a leak. We agreed a service call was needed to clean the unit and then determine if it would then work. Eydin worked hard to discover the problem and gave us clear information about quotes and possible next steps. read more

We had multi split heater/air conditioners installed last week and I can't say enough about Endless Energy. Mike and Jimmy were our team and they were both professional, conscientious, polite, and a real pleasure to work with. The leadership that Mike showed on this job was apparent that he will go far in the future. I highly recommend Endless Energy. read more

My previous message was in the beginning of May, and now in August 2025. It was regarding steam boiler system installation by Endless Energy for me in Brookline, MA. After bad experience with Endless Energy, I advised anyone not to deal with that company, because they do not care if the system they installed works properly or not. And they do not care of good name of their company. Especially after the money was paid. They could promise anything, but never do. In addition to my previous review, I want to add that since May 2025 I contacted Endless Energy many times. They promised to come and fix the problem, we made appointments 4 times, but they never came. I warn you especially if the name of the responsible person is Alex. They have Alex the plumber, and Alex the manager -- don't deal with either of them as they will cheat on you, as that happened to me. The problem in my system still persists. I will probably need to hire someone else to fix it. read more

please do not do business with endless energy- problem after problem. They send some one out, they look and say " someone will be in touch with you to fix it" that was the summer - now attempted to turn heat on - making loud noise and no heat-- Im have to give this company 300 dollars for five years - worse customer service and quality read more

I have never had such an awful experience with any company ever than endless energy. They are irresponsible, do not care about you or your home, make mistakes and don't care, do not communicate, and they are cruel, they will not return phone calls and they will call you names. After they have your money and install, thete really is no incentive for them to care. I regret every day that I chose them, I regret ever changing from oil. So much money spent for nothing but tears and despair. Please, I beg of you, save yourself the heartache I've been through and go somewhere else. (If the respond here to call them, that's a lie, they dont mean it) read more

I want to say thank you to Ryan and Zach for doing an impeccable job and immaculate clean up they were polite and kind, and actually listened to me when I spoke. Thank you, Suzanne Wade read more

Endless Energy came to my house to perform an energy assessment. During the visit, the technician was replacing a shower head. He incorrectly removed it and broke my pipe. I have reached out to the company who said they would send a plumber to fix their mistake. They tell me they will call me back, however they do not call and will not return my calls either. This is completely unprofessional and unacceptable! They came into my house, caused damage and won't fix their mistake. I do not recommend this business! read more

I just had minisplits installed in my home. Hunter & Ryan did an excellent job- not only were the knowledgeable they made sure I was comfortable with the install before the job was finished. thanks so much. read more

We found these folks through a Fujitsu repair website. I am so glad we did! Chad and Mateus came out when they said they would, and diagnosed the problem with our splits. They fixed everything, explained it all to us, and then waited a few minutes to make sure everything was actually working. On top of that, they were very polite and pleasant. I can't say I hope my mini-splits break again, but I *am* glad we found them. read more

I received a call from Liza to confirm a online schedule 10/14/24 appt. I sent a message to confirm appt, I got a call back stating they could not find me on the schedule. What a way to do business. Wasted valuable time. So much for Endless Energy. read more

We requested an home energy assessment, it was fast, the person in charge was knowledgeable, very nice and helpful. However, once we moved forward with the insulation, the crew came and spend 4-5 hours working on it. Unfortunately, when I went to the 3rd floor where to work was performed, everything was moved around, looks like a mess and especially a thick layer of dust is present all over the room and furniture. We had to have a professional cleaner to come over to take care of it. We had our house painted, kitchen and bathroom remodeled and this is the first company that we hire and leave our house in such a poor state. I definitely do NOT recommend their services. read more

Do not use these people. I scheduled an air duct cleaning and they rescheduled me the day before. Not a huge deal but definitely an inconvenience. Then they didn't even show up on the rescheduled date. When I called to inquire, they told me it was my fault for not calling earlier. I have a transcription of the message they left me and it never said anything about me needing to call back to confirm. I took the day off of work for nothing. read more

We hired this company to install heat pumps in our home. Salesman came out made promises that weren't kept, workers left a huge mess, work was not done properly ( crossed wires). Left my dog fence panel unplugged (almost lost one of my dogs). Just a real shit show! Pleased DON'T hire this company. read more

Endless Energy installed our mini split and we couldn't be happier! It was a fantastic experience start to finish. The installation team was extremely professional and knowledgeable l. I had many questions for the tech and he answered all of them with ease and gave a nice demonstration of all the features of the mini split. We have been so happy with the AC in the warm months and the heat in the cool months. The mini split is very quiet and easy to use. I would highly recommend Endless Energy for any HVAC needs! read more

Endless Energy is focused on their profit only at the expense of customers. We regret hiring them instead of other company who sent a professional salesperson who knew what he was talking about. We thought Endless Energy had better price but we have much fewer units and don't have control for each bedroom. Instead of 6days, the whole work lasted two weeks and still left unfinished. 1 ) They used minimal number of 1 technician for HVAC which caused inevitable delays from 4 days to 8 days we were not informed each time from the manager but by the technician as they were leaving for the day. 2) They significantly lack communication. Tina, salesperson, multiple times mislead us. I addressed the problems by calling to the company but they did not responded at all. For the progress of the work, we had to chase the technician. 3) They almost completely lack site or project manager's presence on the job. Two managers shows up but they failed to introduce themselves to homeowners completely or treat them as if subordinate, and one manager(Dave) refused to talk to the homeowner's request to talk. HVAC site manager had audacity to coaching the technician not to go over remote control with home owner saying (Don't go overboard, otherwise you would be stay here forever). He also failed to show us to see the finished work for which we found faults. He also did not reply to out text asking for missing work that are necessary. 6) They left it to the homeowner to ensure the finishing of the job after 630PM instead of the site manager checking it out and present to us. Open hall in the ceiling, dust in personal belong, Ripped shower curtain that was taken away from a tween bed,ding exposing the whole bed to the excessive dust., 6) They had poor dust control and did not reimbursed for our expense. They failed to cover work area from dust. As the homeowner, we had to find out which room whey would work next and rushed to cover with rolls of tapes, blue paint tapes, clear vinyl, and construction trash bags. Some with shower curtains. Project manager Dave was arrogant and rude when he came to talk to electrical team since HVAC did not come. He did not make any eye contact with my husband within feet from him but asked, with no introduction of him, my husband to add 2 to 3 more rows of bricks on the ground for the condenser as if my husband was there as his assistant or subordinate. My husband painstakingly leveled the ground and laid bricks just to speed up the work. However, those bricks were taken off by the HVAC worker since they were not needed at all. Dave also argued and denied any reimbursement for rolls of blue tapes, vinyl drop cloths and contractor trash bags, and shower curtain torn and thrown away by the worker and consequently contaminated beddings and personal belongings on the bed. 1. Electrical team-opened up ceiling larger that 10 x 15 inches and did not seal it at all. They did not used metal-sheathed cable like our existing cables and used a vinyl electrical cable instead which is susceptible to chewing by squirrel or other rodents which may gain access to attic. 3. Insulation team took my lamp from the attic and left trash in the attic floor and they cleaned truck on my curve side and left trashes. They failed to install door sweeps and weather strips. They contaminated the garage with cellulose dust and broken cement and failed to sweep and vaccum. They did not seal the ceiling openings they made with tapes and cracked. They threw our shoes to a big pile and broke boxes of tile and failed to come back on the next day as schedule to finish the job.. However, they used our bathroom despite my advise not to. Endless Energy has been Endless Pain and the job is not finished after extending twice long over two weeks. read more

Endless Energy - After finding dust pile on the drop clothes 3 bedrooms, we contained the dust with vinyl curtains surrounding the installation site. - Home Energy Auditors Near Me - Marlborough, Massachusetts

Great company, great customer service, knowledgeable, helpful employees whose work ethic is top notch. They do a great job, communicate well and show up on time. The employees are polite, experienced and hard working and always clean up after. They made a stressful situation much easier and were very helpful with all the Mass Save requirements. Would recommend them in a heartbeat !! read more

Endless Energy is indeed fortunate to have CHAD as a technician. He is knowledgeable, efficient, friendly ~~ qualities surely missing today. He diagnosed the problem and immediately fixed my mini split heater. He then patiently explained some helpful hints to prevent future difficulties. One could not ask for better service!!! read more

Zach and Caleb did an excellent job installing a Ruud water heater for a reasonable price. I had received other proposals, but Endless Energy stands behind their products and offers good prices. The techs thoroughly explained the system and offered continued assistance as needed. read more

terrible company do not hire. Had a duct cleaning service performed and they claimed to have cleaned the whole system from the supply ducts. after cutting open the main duct in the basement come to find out there was about 2 inches of dust and dirt that wasn't cleaned. They refused to come back out and to finish the job properly and offered a $75 check as compensation. This company hasn't been the same since the new ownership. beware!! read more

This company came to us as a recommendation. The conversation to get a quote for a mini-split installed started in March, it is now July 27. We stressed the importance of having this done quickly due to us moving and have been met with dates being pushed further and further back. Now the unit is being installed on the last possible week, once the crew was finally out to install the unit I received a call from the company that an electrician is not going to be available to complete the installation for another few days delaying the process even further. Though everyone has been pleasant to talk to and the install seems to be going well so far - this process has been nothing but stressful and unclear Would not recommend this company unless you don't care about clear timelines and communication read more

Knowledgeable, efficient, pleasant. Arrived on time, provided an understandable tutorial on the new system, answered all questions. Installation of Ductless system is very neat, unobtrusive. Highly recommend. read more

Provided a detailed quote for the insulation/weatherizing work following an energy assessment. As soon as the crew arrived and went into the attic, they informed me that they were going to have to do more work than what was in the quote and jacked up the price by $200. It took two weeks and multiple messages with the company just to get the revised paperwork that reflected the final charges. Company seems a bit shady, they were very responsive prior to my signing the contract but they were extremely non-responsive after the work was done. Not a good sign that they can't provide an accurate quote from the start, and poor customer service after the work was done, I would suggest looking elsewhere for insulation needs. read more

Besides the couple of hick ups /lack of communication between the coordinator & field foreman on the scope of work. Everything went well. The crew that did the work were respectful, hard working, cleaned up daily. They did a nice job. read more

Endless Energy performed a dust cleaning of our HVAC system and seemed to provide a good service...the only problem is that they left without ever checking to see if the AC was actually working after shutting down our system which was working fine. The problem was resolved by the next morning and the system is working well. read more

This company was wonderful to work with!! When they made the initial contact with us we asked that they not continuously call-and they didn't. They respected our space and were never hard sale. They answered every question we had. Can't recommend them enough!! read more